1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
|
/* sig2str.c -- convert between signal names and numbers
Copyright (C) 2002, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
/* Written by Paul Eggert. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#include <limits.h>
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "sig2str.h"
#ifndef SIGRTMIN
# define SIGRTMIN 0
# undef SIGRTMAX
#endif
#ifndef SIGRTMAX
# define SIGRTMAX (SIGRTMIN - 1)
#endif
#define NUMNAME(name) { SIG##name, #name }
/* Signal names and numbers. Put the preferred name first. */
static struct numname { int num; char const name[8]; } numname_table[] =
{
/* Signals required by POSIX 1003.1-2001 base, listed in
traditional numeric order. */
#ifdef SIGHUP
NUMNAME (HUP),
#endif
#ifdef SIGINT
NUMNAME (INT),
#endif
#ifdef SIGQUIT
NUMNAME (QUIT),
#endif
#ifdef SIGILL
NUMNAME (ILL),
#endif
#ifdef SIGTRAP
NUMNAME (TRAP),
#endif
#ifdef SIGABRT
NUMNAME (ABRT),
#endif
#ifdef SIGFPE
NUMNAME (FPE),
#endif
#ifdef SIGKILL
NUMNAME (KILL),
#endif
#ifdef SIGBUS
NUMNAME (BUS),
#endif
#ifdef SIGSEGV
NUMNAME (SEGV),
#endif
#ifdef SIGPIPE
NUMNAME (PIPE),
#endif
#ifdef SIGALRM
NUMNAME (ALRM),
#endif
#ifdef SIGTERM
NUMNAME (TERM),
#endif
#ifdef SIGUSR1
NUMNAME (USR1),
#endif
#ifdef SIGUSR2
NUMNAME (USR2),
#endif
#ifdef SIGCHLD
NUMNAME (CHLD),
#endif
#ifdef SIGURG
NUMNAME (URG),
#endif
#ifdef SIGSTOP
NUMNAME (STOP),
#endif
#ifdef SIGTSTP
NUMNAME (TSTP),
#endif
#ifdef SIGCONT
NUMNAME (CONT),
#endif
#ifdef SIGTTIN
NUMNAME (TTIN),
#endif
#ifdef SIGTTOU
NUMNAME (TTOU),
#endif
/* Signals required by POSIX 1003.1-2001 with the XSI extension. */
#ifdef SIGSYS
NUMNAME (SYS),
#endif
#ifdef SIGPOLL
NUMNAME (POLL),
#endif
#ifdef SIGVTALRM
NUMNAME (VTALRM),
#endif
#ifdef SIGPROF
NUMNAME (PROF),
#endif
#ifdef SIGXCPU
NUMNAME (XCPU),
#endif
#ifdef SIGXFSZ
NUMNAME (XFSZ),
#endif
/* Unix Version 7. */
#ifdef SIGIOT
NUMNAME (IOT), /* Older name for ABRT. */
#endif
#ifdef SIGEMT
NUMNAME (EMT),
#endif
/* USG Unix. */
#ifdef SIGPHONE
NUMNAME (PHONE),
#endif
#ifdef SIGWIND
NUMNAME (WIND),
#endif
/* Unix System V. */
#ifdef SIGCLD
NUMNAME (CLD),
#endif
#ifdef SIGPWR
NUMNAME (PWR),
#endif
/* GNU/Linux 2.2 and Solaris 8. */
#ifdef SIGCANCEL
NUMNAME (CANCEL),
#endif
#ifdef SIGLWP
NUMNAME (LWP),
#endif
#ifdef SIGWAITING
NUMNAME (WAITING),
#endif
#ifdef SIGFREEZE
NUMNAME (FREEZE),
#endif
#ifdef SIGTHAW
NUMNAME (THAW),
#endif
#ifdef SIGLOST
NUMNAME (LOST),
#endif
#ifdef SIGWINCH
NUMNAME (WINCH),
#endif
/* GNU/Linux 2.2. */
#ifdef SIGINFO
NUMNAME (INFO),
#endif
#ifdef SIGIO
NUMNAME (IO),
#endif
#ifdef SIGSTKFLT
NUMNAME (STKFLT),
#endif
/* AIX 5L. */
#ifdef SIGDANGER
NUMNAME (DANGER),
#endif
#ifdef SIGGRANT
NUMNAME (GRANT),
#endif
#ifdef SIGMIGRATE
NUMNAME (MIGRATE),
#endif
#ifdef SIGMSG
NUMNAME (MSG),
#endif
#ifdef SIGPRE
NUMNAME (PRE),
#endif
#ifdef SIGRETRACT
NUMNAME (RETRACT),
#endif
#ifdef SIGSAK
NUMNAME (SAK),
#endif
#ifdef SIGSOUND
NUMNAME (SOUND),
#endif
/* Older AIX versions. */
#ifdef SIGALRM1
NUMNAME (ALRM1), /* unknown; taken from Bash 2.05 */
#endif
#ifdef SIGKAP
NUMNAME (KAP), /* Older name for SIGGRANT. */
#endif
#ifdef SIGVIRT
NUMNAME (VIRT), /* unknown; taken from Bash 2.05 */
#endif
#ifdef SIGWINDOW
NUMNAME (WINDOW), /* Older name for SIGWINCH. */
#endif
/* BeOS */
#ifdef SIGKILLTHR
NUMNAME (KILLTHR),
#endif
/* Older HP-UX versions. */
#ifdef SIGDIL
NUMNAME (DIL),
#endif
/* Korn shell and Bash, of uncertain vintage. */
{ 0, "EXIT" }
};
#define NUMNAME_ENTRIES (sizeof numname_table / sizeof numname_table[0])
/* ISDIGIT differs from isdigit, as follows:
- Its arg may be any int or unsigned int; it need not be an unsigned char.
- It's guaranteed to evaluate its argument exactly once.
- It's typically faster.
POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
ISDIGIT_LOCALE unless it's important to use the locale's definition
of `digit' even when the host does not conform to POSIX. */
#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)
/* Convert the signal name SIGNAME to a signal number. Return the
signal number if successful, -1 otherwise. */
static int
str2signum (char const *signame)
{
if (ISDIGIT (*signame))
{
char *endp;
long int n = strtol (signame, &endp, 10);
if (! *endp && n <= SIGNUM_BOUND)
return n;
}
else
{
unsigned int i;
for (i = 0; i < NUMNAME_ENTRIES; i++)
if (strcmp (numname_table[i].name, signame) == 0)
return numname_table[i].num;
{
char *endp;
int rtmin = SIGRTMIN;
int rtmax = SIGRTMAX;
if (0 < rtmin && strncmp (signame, "RTMIN", 5) == 0)
{
long int n = strtol (signame + 5, &endp, 10);
if (! *endp && 0 <= n && n <= rtmax - rtmin)
return rtmin + n;
}
else if (0 < rtmax && strncmp (signame, "RTMAX", 5) == 0)
{
long int n = strtol (signame + 5, &endp, 10);
if (! *endp && rtmin - rtmax <= n && n <= 0)
return rtmax + n;
}
}
}
return -1;
}
/* Convert the signal name SIGNAME to the signal number *SIGNUM.
Return 0 if successful, -1 otherwise. */
int
str2sig (char const *signame, int *signum)
{
*signum = str2signum (signame);
return *signum < 0 ? -1 : 0;
}
/* Convert SIGNUM to a signal name in SIGNAME. SIGNAME must point to
a buffer of at least SIG2STR_MAX bytes. Return 0 if successful, -1
otherwise. */
int
sig2str (int signum, char *signame)
{
unsigned int i;
for (i = 0; i < NUMNAME_ENTRIES; i++)
if (numname_table[i].num == signum)
{
strcpy (signame, numname_table[i].name);
return 0;
}
{
int rtmin = SIGRTMIN;
int rtmax = SIGRTMAX;
if (! (rtmin <= signum && signum <= rtmax))
return -1;
if (signum <= rtmin + (rtmax - rtmin) / 2)
{
int delta = signum - rtmin;
sprintf (signame, delta ? "RTMIN+%d" : "RTMIN", delta);
}
else
{
int delta = rtmax - signum;
sprintf (signame, delta ? "RTMAX-%d" : "RTMAX", delta);
}
return 0;
}
}
|
